I stumbled onto a website called CustomSublimation.com last night. They offer custom cycling jerseys (sleeveless, short and long-sleeves), skin suits, BMX jerseys, shorts, shells and vests, triathlon, and cross-country ski apparel.
The great thing about this site, which is a division of Mt. Borah Designs, is that they allow orders as small as six jerseys. This means that I could probably afford to buy Operation Gadget team jerseys if I could find someone to produce graphics for me in Adobe Illustrator format.